Sigenergy SigenStor review: price and specs for Scottish homes
Last updated: 30 October 2026 · Reviewed by the Scottish Energy Efficiency team
Is the Sigenergy SigenStor worth it in Scotland?
SigenStor is the most flexible stackable system on this list. You choose 5.2kWh or 7.8kWh modules, build up to around 48kWh, and can add a DC charger for an electric car. It is a newer company with a 70% end-of-warranty figure, so it suits buyers comfortable with a younger brand.
Specifications
| Specification | Sigenergy SigenStor |
|---|---|
| Usable capacity per unit | 5.2kWh or 7.8kWh modules |
| Maximum system size | ~48kWh per stack |
| Continuous power | Set by inverter module |
| Chemistry | LFP |
| Coupling | DC: DC hybrid, all-in-one stack with optional DC EV charger module |
| Warranty | 10 years, 70% capacity |
| Ingress rating | IP66 |
| EV charging | Optional DC EV charger module |
| Typical installed price (0% VAT) | £6,500–£14,000 (from ~£6,995 for 13kWh) |
Specifications from manufacturer datasheets; prices checked October 2026.
Pros and cons
Pros
- Modular 5.2kWh or 7.8kWh steps, up to about 48kWh
- Optional DC EV charging from the same stack
- IP66 casing for outdoor or garage installs
- Strong value at around 13kWh
Cons
- Newer company with a shorter track record
- Warranty guarantees 70% capacity at the end, lower than some rivals
- Wide price range depending on how many modules you choose
Who does the Sigenergy SigenStor suit in Scotland?
It suits growing households who expect to add an electric car or heat pump, and homes that want to start smaller and expand. Owners in Scotland with a driveway and a garage wall have the most to gain from the DC car charging option. Buyers who want a long-established brand may prefer an alternative.
How much does the Sigenergy SigenStor cost installed?
Typical installed prices for the Sigenergy SigenStor in Scotland are £6,500–£14,000 (from ~£6,995 for 13kWh) at 0% VAT, checked October 2026. Expect quotes to vary by around 20–30% depending on your wiring, where the battery goes, whether solar is fitted at the same time and any backup equipment.
For a full Scottish cost breakdown, read our Sigenergy cost guide for Scotland.
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Sigenergy SigenStor FAQs
How much does Sigenergy SigenStor cost?
Typical installed prices run from about £6,500 to £14,000 at 0% VAT, from around £6,995 for 13kWh, checked October 2026.
Can SigenStor charge an electric car?
Yes, with the optional DC EV charger module, which charges the car directly from the system.
Can I expand SigenStor later?
Yes. Modules can be added later up to roughly 48kWh, subject to the installer checking compatibility.